elsas



y 1956 w. D. ELSAS STOPPER FOR A RESILIENT DISPENSER Filed Nov. 5, 1952 a" 7! I I 1 A Wm M 5 ML N W W p Mm L M L Mm W United States Patent This invention relates to improvements in dispensers for liquids, and more particularly to resilient dispensers for liquids.

It is an object of the instant invention to disclose a resilient dispenser in which the liquid is discharged directly from the dispenser into a measuring receptacle in such manner that the overflow of the receptacle serving as a stopper for the dispenser is effectively avoided.

A further object is to disclose a dispenser of the type described which can be readily made with tubes of any suitable diameter.

Other objects of the instant invention will become apparent in the course of the following specification.

In the attainment of the aforesaid objectives, the improved resilient dispenser is constituted of a resilient hollow body with open neck. In the neck is a removable hollow resilient stopper with open top and closed bottom. Through a side wall of the stopper and intermediate the top and bottom thereof is an opening and communicating therewith is a tube extended into the dispenser. A portion of the tube adjacent the opening fits into a fold formed by a side wall of the stopper. By squeezing the sides of the resilient hollow body, the liquid contents can be forced through the tube to be caught by the hollow stopper, while overflow will be effectively avoided.

The invention will appear more clearly from the following detailed description when taken in conjunction with the accompanying drawings showing by way of example a preferred embodiment of the inventive concept.

In the drawings:

Figure 1 is an elevation view of the dispenser in part section along the line 1--1 of Figure 3 with the hollow stopper empty, and constructed in accordance with the principles of this invention; and

Figure 2 is a section along the line 2-2 of Figure 3 and shows the hollow stopper partially filled.

Figure 3 is a transverse section along the line 3-3 of Figure 1.

Referring now in greater detail to the drawings where like reference numerals indicate like parts, reference numeral indicates the main body of the resilient dispenser, and 11 the hollow stopper.

The main body 10 is hollow formed from any suitable resilient material such as a plastic material or rubber, so that as it is squeezed out of normal shape (Fig. 2) to reduce the volumetric contents and expel the liquid contents it will return to the normal shape (Fig. 1) when released.

Integrally formed with the top of the main body is the upwardly directed neck 12 which may be externally threaded as illustrated or otherwise.

The hollow stopper 11 is made from any suitable resilient material and is designed for insertion in the open neck 12 of the main body as illustrated. The stopper 11 further has a closed bottom 13 and an open top 14.

Through a side wall 15 of the stopper 11 is a circular opening 16 located between the top and the bottom of the stopper, preferably at about the middle thereof.

One end of a tube 18 is fitted into the circular open ing 16 while the opposite end is extended downwardly into the liquid 19. A portion 17 of the tube 18 is located within a fold 20 formed in the side wall 15 of the stopper.

In operation:

With the stopper 11 removed, the main body 10 can be filled through the open neck 12 with any desired liquid. With the stopper 11 reinserted, by squeezing the sides of the main body to reduce the cubical capacity (Fig. 2), the liquid 19 will be forced through the tube 18 into the hollow stopper 11. The hollow interior of the stopper may be graduated in any suitable manner (not shown) to indicate the amount of liquid dispensed which then can be poured into a separate container without further disturbing the remaining liquid contents of the hollow body.

The position of the opening 16 relative to the closed bottom 13 will regulate the amount of liquid in the hollow stopper for if the liquid rises above the opening 16 tube during any squeezing operation the excess liquid above the upper tube will be drawn back into the hollow body when the main body is released from the squeezing operation, so that overflow will be efiectively prevented. The stopper 11 also acts substantially as a seal against spillage. The construction described and illustrated is readily serviced since the tube 18 can be readily removed from the stopper when out of the open neck and cleaned. Furthermore, the size of the fold 20 of the stopper 11 may be conveniently varied depending upon the size of the tube 18. Thus tubes of any suitable size may be used in the described construction.

While there is above disclosed but one form of the improved dispenser, it is possible to produce still other forms without departing from the inventive concept herein disclosed, and it is desired therefore that only such limitations be imposed on the appended claim as are stated therein, or required by the prior art.

What is claimed is:

A stopper for the neck of a bottle, said stopper being hollow and having a cylindrical side wall, a closed bottom and an open top, said cylindrical side wall having a fold extending into the interior of the stopper and forming a groove extending from the bottom of the stopper to the top thereof, said groove having formed therein an opening located intermediate its ends and communicating with the interior of the stopper, and a tube having a lower portion extending into the bottle and an upper portion located within that portion of the groove which extends between the bottom of the stopper and said opening, said tube having an upper end fitting into said open ing.

References Cited in the file of this patent UNITED STATES PATENTS 

